Gas-engine.



PATENTBD JAN. 24, 1905.

-S. F. & C. E. BURLINGAME.

GASENGINE.. APPLIOJjLTION FILED D110. 18, 1903.v

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, l. 21?' y *I I l W2 17 UNITED STATES Patented Januaryl'24', 1905.

I PATENT OEEICE- MASSACHUSETTS. y y

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 780,635, dated January 24, 1905.

Applieation'iiled. December 18, l1903. Serial No.1*85,670.

To a/ZZ wiz/0m, it may concern:

-Be it known that we, SHEnDoN F. BURLIN- GAME and CARL E. BURLINGAME, citizens of the United States, residing at Worcester, in.

the county of Worcester and State of Massachusetts, have invented a -new and nseful Gas- Engine, of which the following is a specification.

This invention relates to an attachment for starting gas-engines into operation.

The especial Yobjects of this invention is to ,provide an attachment for starting gas-em' gines by the use of explosive cartridges, lsaid attachment being so constructed that the-paper wads of the explosive-cartridges will be caught at the end of the explosion-tube in such combinations of parts therewith, as hereinaf` ter described, and more particularlypointed out in the claim at the end of this specification.

In the accompanying drawings, Figure 1 is a sectional view of suiiicient parts of a gasf engine to illustrate the application of our in- Fig. 2'is an enlarged sectional view of the firing-tube in which the cartridge is exploded to 'start the engine. Fig.

3 is a similar view showing how the paper wad of the cartridge iscaught at the end oii the explosion tube when the'cartridge is exploded, and Fig. 4 isa similar view showing the manner in which the paper wad is consumed or burned up.

One of the most serious diiiiculties-in'cidf'znt` shafts of the engines have to be given one or two turns by hand before the engine will start.

To overcome this objection, it has already been proposed to utilize the pressure-from the lexplosion of a cartridge or shell for the purpose of starting a gas-engine. In the actual use of explosive cartridges for starting gasengines we have .experienced considerable dic'ulty by reason of the ypaper or pasteboard wad fromthe shell being blown into the cyl-r inder ofthe gas-engine and afterward ch'ocking up the valves or vpreventing the valves from closing. To-overcome this objection, in

an engine-starting attachment constructed acsion-tube which we have extended into the engine-cylinder, so that the end of the tube will be exposed to the heat of the successive ex.

plosions of gas after `the engine` has been Started. The lower end of the explosion-tube is partly closed, so that when a cartridge is tired the paper wad will lodge in the end of the explosion; tube which extends to the inside ot' the engine-cylinder, and we have found this arrangement to be one of considerable practical importance, as by adopting this constructionv the paper wad of the cartridge will not be permitted to enter the engine-cylinder and will be burned uporconsumed from the heatof the successive charges of burning gas during the operation of the engine.

Referring to the drawings for a detail deengine-cylinder, mounted in which is the piston 'Pp Securedon the endvof the cylinder Q is the cylinder-'head H, and tapped into vthe cylinder-head H is a supply-pipe S. These.

`parts may be of any .ordinary or approved construction and need not beherein described -at length. l Secured in the cylinder-head H is an explosion-tube 410. The lower end of the explosion'- tube extends down to the inside of the cylinder, andl the explosion-tube is secured in' place by anges 11, Vwhich are fastened by-bolts 12.v Threaded onto the upper end of theexplosiontube 10 is a `removable -breechl-block 13, hav.

ing a spring firing-pin '14 mounted therein and heldzfrom turning by a pin 15. An 0rdina'ry cartridge 17-such, for example, as

employed in Shotguns or Similar irearms-- may be dropped into the upper end of the exf plos'ion-tube 10. The cartridge 17 is-provided. lwith a percussion-cap or vprimer 18, and the cartridge 17 may be loaded withany ordinary 55 c ordng to this invention we employ an. explo- K A explosive which may be held in placeY by theA in the end of the explosion-tube.

paper wad 19. In practice we have secured the best results by usinga smokeless or brown nitrogunpowder, and we prefer to use thisv vInthe use of. an attachment as thus constructed the breech-block is unscrewed, a cartridge is putin position, the breech-block is replaced, and the main shaft of the engine is turned so that the piston stands in position to commence its downstroke. The cartridge is then exploded by the firing-pin, as illustrated in Fig. 3,the wad being caught and retained The eXplo-- sion o'f the cartridge will generate suiiicient pressure to start the 'engine into operation to perform the successive functions of drawing in, compressing, and exploding subsequentthe paper wad to be burned up and consumed,

' as illustrated in Fig. 4.

scope thereof as expressed in the claim. vWe donot wish, therefore, to be limited to the particular construction we have herein shown and described; but

What wev do claim, and desire to secure by Letters Patent of the United States, is

Jlhe combination of al gas-engine cylinder, A

and an attachment for starting the engine by 35" i the explosion lof a cartridge consisting of an gas, said inwardly-projecting end being closedl except for perforations of smaller diameter than the bore of the tube, whereby thewad of the cartridge tired inthe explosion-tube will be lodged and consumed in the explosiontube without passing into the engine-cylinder. In testimony whereof we have hereunto set our hands in the' presence ofvtwo subscribing witnesses.

SHELDON F. BURLINGAME. C. E. BURLINGAME. Witnesses:

PHILIP W. Son'riateirrn,

J. ELMER HALL. 

